CN206908892U - A kind of LED emergency lightings lamp - Google Patents
A kind of LED emergency lightings lamp Download PDFInfo
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- CN206908892U CN206908892U CN201720205890.9U CN201720205890U CN206908892U CN 206908892 U CN206908892 U CN 206908892U CN 201720205890 U CN201720205890 U CN 201720205890U CN 206908892 U CN206908892 U CN 206908892U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model provides a kind of LED emergency lightings lamp, belongs to lighting technical field.It solves the problems, such as how to realize LED breakdown lights stable performance in power system accident in the prior art.The illuminating lamp includes the driver element for being used for the power input unit and connection power input unit for connecting power supply, it is characterized in that, also include LED and buffer cell, the driver element connects LED by buffer cell, and the power input unit includes being connected in series in the thermistor of driver element input and is connected in parallel in the two-way transient voltage suppressor of driver element input.The application is realized by two-way transient voltage suppressor in parallel and series thermal-sensitive resistance to be carried out soft start and realizes Anti-surging function so that the stable work in work of this LED emergency lighting lamps in the general and handoff procedure of AC and DC power supply.
Description
Technical field
The utility model belongs to lighting technical field, is related to a kind of LED emergency lightings lamp.
Background technology
At present, the emergency lighting lamp of power plant or electric substation, it is normally that alternating current 220V power supply supplies using 40W incandescent lamp bulb
Electricity, such as station service interruption, after AC power loses, direct current 220V power supplies are automatically switched to, power supply is provided by batteries, for value
Class's personnel's emergency lighting is used.But general incandescent lamp, often generation light bulb filament is bad in use, and big by voltage pulsation, service life is short,
And the emergency lighting lamp quantity of power plant, up to hundreds of, consume is big, the power-on time of battery is influenceed.
And after using LED, every power is 5W, equivalent to 60 watts incandescent lamps of brightness, and long lifespan, small up to 50000
When, influence by voltage is little, all can be used in voltage 150V~260V.So replace white heat with LED in power plant or power supply station
Lamp very can prospect.Due to the importance of power system accident illumination, when ensureing accident, illuminating lamp energy normal work, so to thing
It is without damage when being impacted by line voltage therefore the reliability of LED proposes higher requirement.
The content of the invention
The problem of the utility model exists for existing technology, it is proposed that a kind of LED emergency lightings lamp, the system solve
How to realize the LED breakdown lights in power system accident the problem of stable performance.
The utility model is realized by following technical proposal：A kind of LED emergency lightings lamp, the illuminating lamp include being used to connect
Connect the power input unit of power supply and the driver element of connection power input unit, it is characterised in that also including LED and
Buffer cell, the driver element connect LED by buffer cell, and the power input unit includes being connected in series in driving
The thermistor of unit input and the two-way transient voltage suppressor for being connected in parallel in driver element input.
In power system accident, normal power supply is exchange 220v power supplys, as station service interruption, alternating current are automatic after losing
Direct current 220V power supplys are switched to, enter power supply by batteries.In order that obtain the performance for ensureing LED breakdown lights in power system accident
Stability, it is necessary to ensure that power supply becomes in the power supply handoff procedure of exchange from AC-DC or direct current in accident process
Do not influenceed by power source change and stable breakdown lights illuminate.The operation principle of breakdown lights is that AC power or dc source 220V lead to
Thermistor is crossed, become dc source through the filtering of over-drive unit bridge rectifier is powered by buffer cell to LED.Buffering is single
Member is used to avoid LED breakdown, improves product reliability；In electric power loop concatenate thermistor can effectively suppress on electricity
When surge current, and after powered up, due to the continuous action of electric current, the resistance decrease of thermistor to a very small journey
Degree, will not be impacted to normal operating current.Two-way transient voltage suppressor in parallel, exchange are straight in power input circuit
Power supply is flowed to can be used.When by the moment overvoltage of high-energy, its working impedance is down to very low numerical value immediately, it is allowed to big
Electric current is by and by voltage clamping in predeterminated level, effectively protecting the component in electronic circuit to be destroyed by surge voltage.This
Application is realized the general of AC and DC power supply by two-way transient voltage suppressor in parallel and series thermal-sensitive resistance and switched
Soft start is carried out in journey and realizes Anti-surging function so that the stable work in work of this LED emergency lighting lamps.
In above-mentioned LED emergency lighting lamps, the driver element includes constant-flow driver, the reference voltage of constant-flow driver
Resistance one is connected in series between pin and peak point current adjustment pin, the output fine setting pin of the constant-flow driver is defeated with bearing
Go out and resistance two is connected between pin.Constant-flow driver exports constant pulse current and drives LED to illuminate by buffer cell, together
When pulse current peak and resistance two are adjusted by outer meeting resistance one output current are finely adjusted.Thus with resistance one and electronics
Two pairs of electric currents are adjusted so that the electric current finally exported more meets the illuminalive power-supply requirement of LED, so that this LED accidents
The service behaviour of illuminating lamp is more stable.
In above-mentioned LED emergency lighting lamps, the buffer cell includes the electric capacity for being connected in parallel constant-flow driver output end.
Shunt capacitance mainly rises in the input circuit of LED plays antisurge cushioning effect to output current, avoids LED breakdown,
Improve product reliability.
In above-mentioned LED emergency lighting lamps, the buffer cell includes the inductance for being connected in series constant-flow driver output end.
Shunt inductance mainly rises in the input circuit of LED plays antisurge cushioning effect to output current, avoids LED breakdown,
Improve product reliability.
In above-mentioned LED emergency lighting lamps, the thermistor is power-type negative temperature coefficient resister.Power-type subzero temperature
The thermistor characteristic for spending coefficient resistance is that resistance value is in nonlinear decline with the rise of temperature, at normal temperatures, this heat
Quick resistance has higher resistance value, effectively serves the effect for suppressing surge current.Rapid heating again, temperature liter after energization
Height, its resistance quickly fall to a seldom rank within the time of Millisecond, do not influence the normal use of circuit.Realize
The Anti-surging function of soft start make it that the service behaviour of LED emergency lighting lamps is more stable.
In above-mentioned LED emergency lighting lamps, the LED includes several light emitting diodes being sequentially connected in series.Root
Make its driving power and LED Performance Match according to the brightness of needs and constant-flow driver regulation output current.
In above-mentioned LED emergency lighting lamps, the constant-flow driver is MBI6001N2N chips.It is public from MACROBLOCK
Constant-flow driver of the MBI6001N2N chips of department as LED, have it is simple in construction, peripheral circuit is few, easy to use, can be straight
Connect and be used in alternating current 220V or direct current 220V circuits, drive a string of LEDs, output DC voltage is up to 20V -140V.
Compared with prior art, this LED emergency lightings light fixture has the advantage that：
1st, the utility model by electric power loop concatenate thermistor can effectively suppress on it is electric when surge current,
And after powered up, due to the continuous action of electric current, the resistance decrease of thermistor, will not be to normal to a very small degree
Operating current impact, carry out soft start and realizing Anti-surging function so that the work of this LED emergency lighting lamps
Stable performance.
2nd, the utility model by power input circuit two-way transient voltage suppressor in parallel, AC DC power supply it is equal
It can be used.When by the moment overvoltage of high-energy, its working impedance is down to very low numerical value immediately, it is allowed to which high current is led to
Cross, and voltage clamping is destroyed in predeterminated level, the effectively component in protection electronic circuit by surge voltage.
3rd, the utility model plays antisurge cushioning effect by buffer cell, avoids LED from puncturing, and improves product reliability.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the utility model implementation column one.
Fig. 2 is the circuit block diagram of the utility model implementation column two.
In figure, 1, power input unit；2nd, driver element；3rd, buffer cell；4th, LED；R1, resistance one；R2, resistance
Two；C1, electric capacity；L1, inductance；TVS, two-way transient voltage suppressor；Rt, thermistor；Q, constant-flow driver.
Embodiment
It is specific embodiment of the utility model below, and the technical solution of the utility model is made further with reference to accompanying drawing
Description, but the utility model is not limited to these embodiments.
Embodiment one, as shown in figure 1, this LED emergency lightings lamp includes being used for the power input unit 1 for connecting power supply
With the driver element 2 of connection power input unit 1, driver element 2 includes constant-flow driver Q, constant-flow driver Q reference voltage
The output fine setting pin that resistance one R1, constant-flow driver Q are connected in series between pin and peak point current adjustment pin is defeated with bearing
Go out and the R2 of resistance two is connected between pin.Constant-flow driver Q exports constant pulse current and drives LED 4 to shine by buffer cell 3
It is bright, while output current is finely adjusted by the R1 of outer meeting resistance one regulation pulse current peaks and the R2 of resistance two.Thus with electricity
Hinder a R1 and electric current is adjusted electronics two so that the electric current finally exported more meets the illuminalive power-supply requirement of LED 4, so as to
So that the service behaviour of this LED emergency lighting lamps is more stable.Constant-flow driver Q is MBI6001N2N chips.From
Constant-flow driver Q of the MBI6001N2N chips of MACROBLOCK companies as LED 4, there is simple in construction, peripheral circuit
It is few, it is easy to use, alternating current 220V or direct current 220V circuits can be used directly in, drives a string of LEDs 4, it is reachable to export DC voltage
20V—140V。
Also include LED 4 and buffer cell 3, driver element 2 connects LED 4 by buffer cell 3, and buffer cell 3 wraps
Include the electric capacity C1 for being connected in parallel constant-flow driver Q output.Shunt capacitance C1 is mainly risen to defeated in the input circuit of LED 4
Go out electric current and play antisurge cushioning effect, avoid LED 4 breakdown, improve product reliability.LED 4 is gone here and there successively including several
Join the light emitting diode of connection.Brightness as needed and constant-flow driver Q regulations output current make its driving power and LED
4 Performance Match.
Power input unit 1 includes being connected in series in the thermistor Rt of the input of driver element 2 and is connected in parallel in drive
The two-way transient voltage suppressor TVS of the input of moving cell 2.Thermistor Rt is power-type negative temperature coefficient resister.Power-type
The thermistor Rt characteristics of negative temperature coefficient resister are that resistance value is in nonlinear decline with the rise of temperature, in normal temperature
Under, this thermistor Rt has higher resistance value, effectively serves the effect for suppressing surge current.It is again rapid after energization to send out
Heat, temperature rise, its resistance quickly fall to a seldom rank within the time of Millisecond, and not influenceing the normal of circuit makes
With.The Anti-surging function of realizing soft start make it that the service behaviour of LED emergency lighting lamps is more stable.
Embodiment two, as shown in Fig. 2 buffer cell 3 includes being connected in series constant-flow driver Q output in the present embodiment
Inductance L1.The buffering anti-surge served by series inductance L1 come shunt capacitance C1 in alternative embodiment one.Remaining structure
It is identical with embodiment one.
It is the operation principle of the application LED emergency lighting lamps below：
In power system accident, normal power supply is exchange 220v power supplys, as station service interruption, alternating current are automatic after losing
Direct current 220V power supplys are switched to, enter power supply by batteries.In order that obtain the performance for ensureing LED breakdown lights in power system accident
Stability, it is necessary to ensure that power supply becomes in the power supply handoff procedure of exchange from AC-DC or direct current in accident process
Do not influenceed by power source change and stable breakdown lights illuminate.The operation principle of breakdown lights is that AC power or dc source 220V lead to
Thermistor Rt is crossed, becomes dc source through over-drive unit Bridge 2 formula rectifying and wave-filtering, while pass through the R1 of resistance one, the R2 of resistance two
Realize that current regulation exports 100mA continuous currents, by buffer cell 3 so as to driving LED 4 to illuminate.Simultaneous buffering unit 3 is used
In avoiding, LED 4 is breakdown, improves product reliability；The temperature-sensitive of power-type negative temperature coefficient resister is concatenated in electric power loop
Surge current when resistance Rt can effectively suppress upper electric, and after powered up, due to the continuous action of electric current, thermistor Rt's
Resistance decrease will not impact to a very small degree to normal operating current.Power-type negative temperature coefficient heat-sensitive
Resistance Rt characteristics are that resistance value is in nonlinear decline with the rise of temperature, and at normal temperatures, thermistor Rt has higher
Resistance value, the application optimal resistance selects 5-15 Ω, effectively serves the effect for suppressing surge current.Temperature-sensitive electricity after energization
Resistance Rt generates heat rapidly, and temperature rise, its resistance quickly falls to a seldom rank within the time of Millisecond, do not influence electricity
The normal use on road.Two-way transient voltage suppressor TVS in parallel, AC DC power supply can be used in power input circuit.
When by the moment overvoltage of high-energy, its working impedance is down to very low numerical value immediately, it is allowed to which high current is by and by electricity
Strangulation is pressed to be destroyed in predeterminated level, the effectively component in protection electronic circuit by surge voltage.Such as when circuit has by outer
When boundary's lightning voltage or switching overvoltage invade, two-way transient voltage suppressor in circuit in parallel can be to be exceedingly fast with psec
The speed of level, its working impedance can drop to very low conduction value immediately, absorb up to number KW surge power, by voltage clamp in
Permissible value, it is effectively protected chip below and LED 4.The emergency lighting lamp reliability that this is used for power system is high, electricity consumption
Save, and the surging prevention with soft start function can be used for voltage x current than more sensitive electronic component loop, it is stable
Illumination performance, while extend the service life of product.IN represents input in Fig. 1-2 constant-flow drivers Q, and OUT represents output
End, wherein has in output end including negative output pin and positive output pin.REF represents reference voltage pin, and PC represents peak value electricity
Flow adjustment pin, DA output fine setting pins.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (7)
1. a kind of LED emergency lightings lamp, the illuminating lamp includes being used for power input unit (1) and the connection electricity for connecting power supply
The driver element (2) of source input block (1), it is characterised in that also single including LED (4) and buffer cell (3), the driving
First (2) connect LED (4) by buffer cell (3), and the power input unit (1) includes being connected in series in driver element (2)
The thermistor (Rt) of input and the two-way transient voltage suppressor (TVS) for being connected in parallel in driver element (2) input.
2. LED emergency lightings lamp according to claim 1, it is characterised in that the driver element (2) drives including constant current
Device (Q), resistance one (R1) is connected in series between the reference voltage pin and peak point current adjustment pin of constant-flow driver (Q),
Resistance two (R2) is connected between the output fine setting pin and negative output pin of the constant-flow driver (Q).
3. LED emergency lightings lamp according to claim 1 or 2, it is characterised in that the buffer cell (3) includes parallel connection
Connect the electric capacity (C1) of constant-flow driver (Q) output end.
4. LED emergency lightings lamp according to claim 1 or 2, it is characterised in that the buffer cell (3) includes series connection
Connect the inductance (L1) of constant-flow driver (Q) output end.
5. LED emergency lightings lamp according to claim 1, it is characterised in that the thermistor (Rt) is born for power-type
Temperature coefficient of resistance.
6. LED emergency lightings lamp according to claim 1, it is characterised in that the LED (4) includes several successively
The light emitting diode being connected in series.
7. LED emergency lightings lamp according to claim 2, it is characterised in that the constant-flow driver (Q) is
MBI6001N2N chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205890.9U CN206908892U (en) | 2017-03-03 | 2017-03-03 | A kind of LED emergency lightings lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205890.9U CN206908892U (en) | 2017-03-03 | 2017-03-03 | A kind of LED emergency lightings lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908892U true CN206908892U (en) | 2018-01-19 |
Family
ID=61295432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720205890.9U Active CN206908892U (en) | 2017-03-03 | 2017-03-03 | A kind of LED emergency lightings lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206908892U (en) |
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2017
- 2017-03-03 CN CN201720205890.9U patent/CN206908892U/en active Active
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